Spring cushion



Nov. 1s, 1.1537. J. A; FINDO'RA 2,099,200

SPRING CUSHION Filed July 14, 1936 2 Sheets-sheet 2 y A INVENTOR ,Cif/2 fw @t 972/04,

j) "gld A oRNEYsf' the rear Wheelf housings.

Patented Nov. 16, 1937 SPRING CUSHION John A. Findora,` Adrian, Mich., assignor to Stubnitz-Greene Spring -Corporatiom Adrian, lYIich., a corporation of Michigan Application July1 14, 1936; serial No.` 90,544 `l ,5 yclaims. (ci. s-.180.) L A `which is'y easier tofltrim and: also lend's'itself to a neat'erl and betterftrimjob' than heretofore obtainediwhich has concealed fasteners for secur-y `ing'thetri-m1 to the cushion frame and which has K' a-iramevery easily formedtoftthe uneven; con- 'tour of thepresent day vehicle bodyfl'oor.

In thedraw-ings: Y

Fig. I atopplan View` ofar spring cushion with the trim partly brokeny away.

Fig. 2 is a section ai'ongA the line 23---2` of Fig. 1.

Fig; 31' isa section along the line 3`3 ofFig. l2.

Figs.' 4 andi 5i are detail views showing the mannery 'of attachmentv off the slats to the bottom frame; f

Figs. 6' through: li are detailed enlarged sections similar toi Fig.2 showing different forms of the bottom.l frame and' different fasteners for securing the trim. material tothe bottomv frame.

necessary' to adapt' the. rear'seat in a standard make of automobile. tol. the vehicle'body floor to e accommodate the diiferential:v housing andalso 132 isfa'section;along the'line I-'3--I3- of Fig. 1 showing the clamp for securing the members? of thev bottoni. frame together."

Referring more particularly tov the drawings there is shownE a spring cushion: havifng a bottom frame'y generally' designated I1, a top frame 2, crossislats: Sfandcoilsprings 4. The top frame 2 isa continuous wirey frame and the outside coil springs are securedthereto by the clamps 5. The

y Ycoilt springs areV secured to each otherk byl thev Kcross wires 6 inn the usual manner. 45@

- ings-1: inthe slats 3v which support the; springs.

The bottom ends of the' coill springs 4f arer threaded intoi open- Inthe manufacture of automobii'esi the trend isz'to`4` get the center o f gravityf of the fvehicle tas near' toitheground as possible. In carrying out this trend; the vehicle body floor has been lowered and necessarily the licor-is' formed to acl commodate the differential housing, the propeller frames UNITED STATES "PATENT OFFICE.-

have beenpcurved upwardly and rearwardly as at 8 to accommodate the rear wheel housings, and in Fig; 12' it `willibe noted howthe front side of the vbottom frame andthe 'springs v have been Y arranged as at 9 to accommodate the tunnel? in Vthefloorfor the propeller shaft andthe differentialhousing. These Various uneven shapesinto which the bottomI frame* must be! formed make it highly desiralcrle,V from the standpoint of economyf'and manufacture, that the bottom seat frameshould be such that itf can be'readil'y shaped to any form desired.. Tofachievethis end it is pro-posed to make the'bottom4 seat frame I in the form of two separate continuous. wire I0 andY I:I, frame I.'Ii being positioned within the. outer frame I0. 'I'he wire from which the frames. mi' and IrI is made preferably is circul-ar in cross/section. but-.other sectional shapes of wire. can be' used; such,..iorlA exampleVas'a rectangular section. "Frames I0 and lili havefcorrespending shapes and; frameV II has' a, Vsmaller periphery and fits.I withim. and in spaced relation with, the outer frame I0.

The frames I0 andv II are securedv together by the slatsl 3,:as Vshown inFigsf.. 4 and 5f. In Fig. 45 the flaredend I2" of the slat 3 is positioned on top of the frames,A theng bent downwardly and inwardly to fix the frames together Whereas in Fig.. 5. the ends I'2ofrthe-slats are positioned under the frames III and II, their bent upwardly and inwardly to: secure the frames together. In4 each case it will be,y noted; that; the ends Il21 of the; slats 3^ are indented asjat: I3.v and IIIr so; that the frames .10i-and Il are xedltogether in spaced relation'.

As shown Fig. 131,'thezsidesof the framesV I0" and II which extend parallel to theicross slats '3 are heldV together by-theat steel strip clamps trimmed'. To this end the trimming I6- is placed upon the padding I'I positioned on top of the coil springs 4. The'trimming IIiy is then drawn downwardly and inwardly, as at I8, about the outer frame I0 and then wrapped about the inner frame II. The trimming llisthen secured to the inner frame I-I by the spring clips I9 of the type shown and described'- in copending application of Daniel A. Greene; Serial No. 25,'ll7l,filed Jlune 10, 1935. The spring clip fastener I9 is thus completely concealed` and yet is very readily .ac-v.,

cessible. in caseaone desires V,to remove it..f.` The spring clips I9, of course, will be mounted on the inner frame II between the slats 3, which portion of the inner frame is readily accessible to the workman. The fact that the trimming I6 is drawn around the outer frame I0 as at I8 cushion and the trimming I6 is stretched and.V drawn taut by the coil springs 4. This snubbing, action on the trimming I6, achieved bydrawing the trimming I6 about the outside frame I0,

materially relieves the load which would other- 1 wise be placed upon the spring clip fasteners I9 and thus practically prevents any wear'of the trimming where it is secured to the frame Il.

In Figs. 8 and 9 there are shown optional forms of fasteners for securing the trimming to the bottom frame I. In Fig. 8 the trimming is secured to the frames l'an'd II by a plurality of wire staples 20 iand in Fig. 9 by a plurality of split rivets 2 I; Both the staples-2D and the rivets 2l` pass between the outside frame I0 and inside frame I I.

A modified form of a bottom frame I is shown in Fig. 6. In this modified form the, bottom frame comprises an outer frame portion 22 and an inner frame portion 23 which are-connected by the web'portion 24. This Ytype of frame can VVbe made bypassing a large wire through a suitable die which forms it into the outer and inner frame portions 22 and 23 with the interconnect- Y ing web 24.

In the modified form shown in Fig. "7, the bottom frame comprises a steel strip, the outer edge portion of which is rounded and turned inwardly towards the center line of the strip to form the outer bead portion 25 and the inner endV portion of which is rounded and turned inwardly towards the longitudinal center line of the strip to form the inner bead portion 26. The portions 25 and 26 form outer and inner frame members connected by the web 21.

vrIn both of the forms shown in Figs. 6 and 7 the trimming I6 is secured to the frame by the Vclips I9. After the wire has been formed to the cross section shown in Fig. 6, it is formed into a rectangular frame of the contour desired and the abutting ends welded or otherwise secured together. Likewise, after the sheet steel strip has been formed into the section shown in Fig. '7, it

also is shaped into a rectangular frame or frame' of any contour desired and the abutting ends welded or otherwise secured together.

1. A spring cushion comprising a bottom marginal frame of inner and outer members, means securing the inner frame member to the outer frame member, a plurality of slats bridging the opening defined by the frame and secured at opposite ends to the opposite sides of the frame `to rigidify the saine,Y a plurality of springs supthe pressure applied to frame member, a plurality of slats bridging th opening defined by the frame and secured at opposite ends to the opposite sides of the bottom frame to rigidify the same, a plurality of springs supported by Vthe said slats, a covering for the Asaid springs, the said covering passing downwardly along the side of the outer frame member .and then inwardly about the inner frame memv ber whereby the springs are compressed, and A means securing thel covering to the inner frame member whereby the outer frame member cooperates With the covering to snub the pressure which the springs' apply to the covering and thereby relieve Vthe fastening'means from a substantial portion of the Vsaid spring pressure.

f 3. A spring cushion comprising inner andouter wire bottom marginal frame members, means securing the inner wire framegtortheouter wire frame, a plurality of slats bridgingl the opening Va snubber to relieve the fastening means from Y the covering by the said springs. Y

4. A spring cushion comprising inner and outer wire bottom marginal frame members having a circular cross section, means securingV the inner wire frame to the outer wire frame, a plurality of slats bridging the opening defined by the wire a substantial portion of the pressure applied to `frame members and securedzat opposite ends to theY opposite-sides ofthe inner and outer wire frame members to rigidify the same, a plurality 1 of springs supported, by the said slats, a covering for the springs passing downwardly aboutthe outer wire frame member to compress the Vsprings and then inwardly about the inner wire frame member, and means securing the covering to thef-` inner wire frame member whereby the outer wire frame member acts as a snubber to relieve the fastening means from a substantial portion of the covering'by the said springs. az 5. A spring cushion comprising inner and outer wire bottom marginal frameV members having corresponding shapes and positioned in substantially the same plane, a plurality of slats bridging the opening defined by the wire frame members'. and secured at opposite ends to the opposite sides of the inner and outer wire frame members to frigidifythe same, a plurality of springs supportedV by the said slats, a covering for the springs passing downwardly about the outer wire frame? member to compress Y.the springs and then in- VwardlyV at substantially a right Yangle and then about the-inner wire frame member, and means securing the covering Vto the inner wire frame member whereby the outer wire frame member acts as a snubber to relieve the fastening means from a substantial portion of the pressure applied to the covering by the said springs.

JOHN A. FINDORA.

Ydefined by the wire frame` members and secured @.20 

